Mysterious
Free Spins Win Multipliers RTP: 94.50%
Game Description:
Solve the puzzles of Mysterious, the variable reel size with up to 4096 ways to win videoslot. Grab the multipliers as you hunt the Lord, Mystery Symbols create big win when you meet the Lady and the Baron brings Infectious Wilds. Choose your own free spins at the fateful hour, with roaming Wilds or up to 12x multiplier!
Game Rules:

Mysterious Slot


Released in 2022, Mysterious is an online slot that was produced by the well-established gaming development team, Pragmatic Play. As suggested by the title, an eerie aesthetic is presented, drawing inspiration from the horror theme, a genre that is surprisingly popular when it comes to online slot games. This design is evident across the display, combined with straightforward gameplay in the Mysterious slot.


Mysterious Game Background


Initially, the gameplay of the Mysterious slot is presented in a more simplistic style, with a 4x4 playtable structure hosting 256 paylines, which could expand to a 6x4 grid hosting a total of 4096 ways to land a combination. The dynamic playtable in Mysterious contrasts with classically inspired slots, utilising bonus features, some of which could be found in Megaways slots, that provide development to the base game.


Focusing on the horror aesthetic of Mysterious, the background sets the scene of an eerie, dimly lit, Victorian-style street, with a mansion on top of a hill that is overlooked by a cloudy, thunder-filled sky. Complementing this, the centrally placed playtable features an intricately designed bronze border that surrounds dark grey reels, aligning with the rest of the screen and ensuring the themed symbols remain easily visible throughout the course of the gameplay. In general, the design of the Mysterious slot game is consistent across the display, featuring a darker aesthetic that is blended with Victorian-inspired imagery.


The horror theme of Mysterious is one of the most dominant on the modern market and can be found in a number of other titles, including Immortal Romance and the Bloody Murder slot.


Mysterious Slot Symbols


Slot symbols in Mysterious are presented in a manner that takes into account both the aesthetic and the horror theme. Even though the lower-value symbols that follow a modern trend in slot games utilising playing cards, typically found in live casino games, follow these considerations. This slightly contrasts with the higher-value symbols, which instead are represented by imagery that directly references the horror theme.


Lower-Value Symbols:

  • Diamond

  • Clubs

  • Heart

  • Spade


Medium-Value Symbols:

  • Purple Symbol

  • Bronze Symbol

  • Silver Symbol


Higher-Value Symbols:

  • Gold Symbol

  • Mysterious Logo


In terms of bonus symbols, there are a few that could appear in the Mysterious playtable, still ensuring that the aesthetic from the rest of the display is upheld. They include different Wilds, either a golden square or 3 alternative golden squares with different characters, a blue square as a Scatter, and a clock face as a Multiplier.


Mysterious Bonus Features


During the Mysterious gameplay, a Wild could land within the grid, possessing the ability to potentially step in for other symbols in order to make or increase a combination when it is in a position to do so, with the exception of other bonuses. 


Landing 3 or more Scatters can trigger the Free Spins mode in Mysterious, providing players with a 6x4 reel format. Before entering the mode, players can choose from two different modifiers that are present throughout the feature, which include:

  • Locking Multiplier Free Spins - Random clock faces can land on the grid, awarding a Multiplier value that interacts with combinations until the mode concludes. This symbol can only appear on reels 1 and 6, possessing a value of either 3x, 6x, 9x, or 12x, and also awarding additional spins by landing 2 simultaneously.

  • Resurrecting Roaming Wilds Free Spins - Providing Wilds that can slowly fade and roam the reels, returning to the gameplay if another Wild symbol hits.


On any spin of the Mysterious base game, a random modifier could be triggered, corresponding to the characters on the left of the screen. These bonuses are:

  • The Lord - Acts as a Wild with a Multiplier value of 2x or 3x, only appearing on reels 2, 3, and 4.

  • The Lady - Acting as a Wild, it can expand to reveal a Stacked symbol formation, potentially resulting in a combination, and only lands on reels 2, 3, and 4.

  • The Baron - Landing on reels 2, 3, and 4 only, this symbol behaves as a Wild, potentially infecting symbols on the horizontal reel and turning them into Wilds.


Mysterious Mobile Play


During the development of the Mysterious slot, HTML5 has been utilised to allow it to be played on different devices, including smartphones, tablets, and PCs. This technology has now become a consistent part of online casino games, enabling them to be accessed on various screen sizes with only an internet connection required.


Play Mysterious at BOYLE Casino


As a whole, the eerie, horror theme of Mysterious is maintained across the display, combining it with a gameplay structure that initially offers a more simplistic style, but is provided with development through the implementation of bonus features. There are many other releases on the market that follow the horror genre, including Ghost of Dead and the Big Scary Fortune slot.


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